▤ AN INDEPENDENT DEVELOPER MANUAL
Jev Manual.
Small decisions.
Thoughtful systems.
Jev is a decision model for software. Give it state and typed questions. Get answers your code can act on.
From your first typed decision to production workflows.
STATE / SUPPORT TICKET
“I was charged twice this month.
Please refund the duplicate before Friday.”
j.Jev evaluates
ChoiceWhich team?billing
ScoreHow urgent?2.6 / 3
NoulRefund requested?0.97
↳ Your code owns the action.Illustrative values
Current modeljev-1.13.0
Input / 1M tokens$0.042
Question typesChoice · Score · Noul
Direct endpoint/v1/systemone
A good place to begin
You bring the problem. Start here.THE DESK REFERENCE
Explore the manual →Find the answer. Get back to building.
State design
Give Jev the context it actually needs.
Choice, Score & Noul
Three primitives. The right one for your job.
The API
Requests, responses, and working examples.
Confidence
Decide when to act, verify, or escalate.
Models & versions
Pin a version. Keep your thresholds honest.
Limits & failure modes
Know where deterministic code belongs.
LEARN BY MAKING
Real workflows.
One clear decision
at a time.
Practical projects that connect model judgments to the code around them.
All tutorials →Fits into the stack you use
Integration guides →A NOTE ON TRUST
Clear sources. Explicit assumptions.
Example thresholds that are always labeled.